EP1775555A1 - Intuitive Darstellung von Windgeschwindigkeit und -richtung - Google Patents

Intuitive Darstellung von Windgeschwindigkeit und -richtung Download PDF

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Publication number
EP1775555A1
EP1775555A1 EP06122077A EP06122077A EP1775555A1 EP 1775555 A1 EP1775555 A1 EP 1775555A1 EP 06122077 A EP06122077 A EP 06122077A EP 06122077 A EP06122077 A EP 06122077A EP 1775555 A1 EP1775555 A1 EP 1775555A1
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EP
European Patent Office
Prior art keywords
craft
force
displaying
display
relative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06122077A
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English (en)
French (fr)
Inventor
Thea L. Feyereisen
John M. Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Publication of EP1775555A1 publication Critical patent/EP1775555A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C23/00—Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
    • G01C23/005—Flight directors

Definitions

  • the present invention generally relates to graphical displays and, in particular, to an intuitive presentation of a force magnitude and direction.
  • Embodiments of the present invention solve the need for an intuitive display of the direction and magnitude of external forces with respect to a craft.
  • a method for displaying the direction of an external force relative to a craft comprises obtaining direction data for an external force, obtaining craft directional data, calculating the force's direction relative to the craft's direction, and displaying a graphical representation of the force's direction relative to the direction of the craft.
  • a graphical display system comprises one or more sensors which obtain craft directional data and data regarding magnitude and direction of an external force acting on a craft and at least one processor for receiving and processing data from the one or more sensors, wherein the at least one processor calculates the direction of the external force relative to the craft's direction.
  • the graphical display system also comprises a display element for receiving signals from the at least one processor and displaying the direction of the external force relative to the craft's direction according to the signals from the at least one processor.
  • a computer readable medium having computer-executable instructions for performing a method of displaying the direction of an external force relative to a craft.
  • the method comprises obtaining directional data for an external force and for a craft, calculating the force's direction relative to the craft's direction, and displaying a symbol whose position on a display forms an angle with the craft's direction representing the external force's direction relative to the craft's direction.
  • a graphical display system comprises means for obtaining data regarding a craft's direction, means for obtaining data regarding the magnitude and direction of an external force acting on the said craft, and means for displaying the direction of said external force relative to the craft.
  • embodiments of the present invention are suitable for use on CRT, LCD, plasma or any other existing or later developed display technology. It should also be understood that the exemplary method illustrated may include additional or fewer steps or may be performed in the context of a larger processing scheme. Furthermore, the method presented in the drawing figures or the specification is not to be construed as limiting the order in which the individual steps may be performed. The following detailed description is, therefore, not to be taken in a limiting sense.
  • a display may show that an aircraft has a north-north west heading and winds are coming from a southwest direction.
  • the flight crew of the aircraft has to convert the wind direction to understand the wind direction with respect to the aircraft's north-north west heading; While the calculations may only involve, trigonometry, it is still relatively easy for members of the flight crew to be confused respecting the wind direction considering the many other tasks required of the flight crew.
  • Embodiments of the present invention make the calculations for the flight crew and display the wind direction relative to the aircraft in an intuitive and easy to understand manner. Hence, embodiments of the present invention alleviate potential confusion and allow flight crews to focus on other important aspects of flying.
  • Figure 1 is a flow chart showing a method 100 for presenting an intuitive display of the direction of an external force relative to the orientation of a craft.
  • a plurality of instances of method 100 one for each UAV being observed/controlled on a display element, are performed.
  • a plurality of graphical representations of the direction of an external force relative to the orientation of a craft are presented on a common display element, one for each UAV, as shown in an exemplary embodiment in Fig. 4.
  • data is obtained regarding the magnitude and direction of an external force. In some embodiments concerning aircraft, this external force is wind speed and direction.
  • craft directional data is obtained. In some embodiments, craft directional data is heading data.
  • craft directional data is track data. In yet other embodiments, craft directional data is a combination of both heading and track data.
  • the display is oriented. In some embodiments implemented in aircraft, the display is oriented by aligning the direction of the aircraft with the top of the display. An exemplary embodiment of this orientation is shown in Figs. 2A and 2B. Although exemplary embodiments shown in Figs. 2A-2D are directed at aircraft, it will be understood by one of skill in the art that the features shown in Figs. 2A-2D are also implemented in other embodiments directed at other types of crafts.
  • aircraft symbol 204 is pointing to the top of the display indicating the aircraft's direction.
  • the direction is based on the aircraft's heading.
  • the direction is based on the aircraft track,
  • the direction is based on a combination of the aircraft's heading and track
  • the orienting includes aligning the top of the display with North and displaying aircraft symbol 204 at the angle of its direction relative to North- An exemplary embodiment of this orientation is shown in Fig. 2D.
  • North is at the top of the display and aircraft symbol 204 is displayed at an angle representing the angle between North and the aircraft's direction.
  • the force's direction relative to a direction of the craft is calculated.
  • calculating the force direction relative to the craft's direction includes calculating an angle directly between the force's direction and the craft's direction. Exemplary embodiments of displays of this calculation with respect to aircrafts are shown in Figs. 2A - 2C
  • calculating the force's direction in relation to the craft's direction includes calculating a first angle between North and the craft's direction, and calculating a second angle between North and the force's direction. The combination of the first and second angles represents the angle between the craft's direction and the force's direction.
  • An exemplary embodiment of a display of this calculation implemented in an aircraft is shown in Fig. 2D.
  • the force direction is the direction of wind.
  • the wind direction relative to an aircraft's heading is calculated.
  • the wind direction is calculated relative to an aircraft's track In yet other embodiments, the wind direction is calculated relative to a combination of an aircraft's heading and track.
  • a graphical representation of the farce's direction relative to the craft is displayed.
  • Exemplary embodiments, involving aircraft display wind direction relative to a direction of the aircraft in Figs. 2A - 2D.
  • force direction symbol 202 is a triangle pointing inwardly toward aircraft symbol 204.
  • other shapes are used.
  • ring 208 is included to aid in making the display easier to read.
  • Fig. 1 As shown in Fig.
  • ring 208 is not included. Additionally, in some embodiments, aircraft symbol 204 is not included, as shown in Fig. 2C. In such embodiments, force direction symbol 202 still points inward toward the center of the circle where aircraft symbol 204 is shown in other embodiments. Additionally, in such embodiments, ring 208 is typically included to aid in reading the display in the absence of aircraft symbol 204.
  • Magnitude indicator 206 gives a digital display of the magnitude of the external force. In embodiments of the present invention implemented in aircraft, magnitude indicator 206 displays the wind speed. The magnitude of a force is displayed in any appropriate measurement system including the metric and British systems. In yet other embodiments, magnitude indicator 206 is not included. Additionally, in some embodiments, the magnitude of the force is displayed by scaling the size of force direction symbol 202. In some embodiments, the length of force direction symbol 202 is scaled to indicate magnitude, as shown in Fig. 2C. In other embodiments, the width of force direction symbol 202 is scaled. In some embodiments, force direction symbol 202 has a maximum and minimum size. In other embodiments, the color of force direction symbol changes indicating the magnitude of the force. As can be seen in Figs. 2A - 2D, all embodiments of the present invention alleviate the confusion of determining force direction with respect to the direction of a craft.
  • FIG. 3 is a block diagram of a graphical display system according to one embodiment of the present invention.
  • an exemplary graphical display system 300 includes processor 304 configured to provide data for display to display element 308.
  • One or more data sources are coupled to processor 304. These data sources include, but are not limited to, sensors 302 and memory 306. In some embodiments, one or more of these data sources are omitted.
  • sensors 302 are used to provide data to processor 304 for use by processor 304 in calculating wind direction relative to an aircraft. Sensors 302 include any appropriate sensor for determining a craft's position and direction as well as the magnitude and direction of an external force.
  • sensors 302 include, but are not limited to, anemometers, ultrasonic sensors, coherent Doppler laser radar, global positioning system (GPS) receivers, pressure gauges, etc.
  • GPS global positioning system
  • one or more of sensors 302 are located on a craft.
  • one or more of sensors 302 are located in a remote location and data is transmitted to a craft via wireless telecommunication techniques known to one of skill in the art.
  • one or more of sensors 302 are located on a craft and data collected by sensors 302 is transmitted to processor 304, located in a remote site, via wireless telecommunication techniques.
  • Memory 306 includes any type of suitable medium such as floppy disks, conventional hard disks, CD-ROM, flash memory ROM, nonvolatile ROM, RAM, or other suitable medium.
  • Processor 304 and memory 306 are coupled together allowing processor 304 to write to and store data in memory 306 as well as retrieve stored data from memory 306.
  • memory 306 stores data received by processor 304 from sensors 302.
  • memory 306 temporarily stores data to be transmitted from processor 304 to display element 308.
  • Processor 304 includes or interfaces with hardware components that support the graphics display system.
  • these hardware components include one or more microprocessors, graphics processors, memories, storage devices, interface cards, and other standard components known in the art.
  • processor 304 includes or functions with software programs, firmware or computer readable instructions for carrying out various methods, process tasks, calculations, control functions, and the generation of display signals and other data used in the operation of the display system.
  • These instructions are typically stored on any appropriate medium used for storage of computer readable instructions such as floppy disks, conventional hard disks, CD-ROM, flash ROM, nonvolatile ROM, RAM, and other like medium. In some embodiments, these instructions are stored on memory 306.
  • Display element 308 includes any display element suitable for displaying the various symbols and information for the operation of embodiments of the present invention including existing and later developed display technology. There are many known display elements that are suitable for these tasks, such as various CRT, active matrix LCD, passive matrix LCD, and plasma displays. Embodiments of the present invention are implemented in both heads-up and heads-down displays.
  • Processor 304 sends appropriate signals and data to display element 308. These signals and data instruct display element 308 to display force direction relative to a craft's direction.
  • a display of the force direction relative to a craft's direction is overlaid on top of other graphics displayed on display element 308.
  • the display of the force direction relative to a craft's direction is semi-transparent allowing background graphics to be seen.
  • Figure 4 is an image of a display of a plurality of graphical representations of the direction of an external force relative to a plurality of crafts according to one embodiment of the present invention.
  • a plurality of craft symbols 404 each symbol representing an UAV, is displayed in section 408 with graphical terrain 406.
  • graphical force representations 402 are displayed.
  • Each of graphical force representations corresponds to one of craft symbols 404.
  • graphical force representations 402 are displayed at different positions and in different sizes.
  • graphical force representations 402 are displayed next to craft symbols 404.
  • FIG. 4 it will be understood by one of skill in the art that in other embodiments, other appropriate numbers of symbols and force representations are used, one force representation for each symbol.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Processing Or Creating Images (AREA)
  • Navigation (AREA)
EP06122077A 2005-10-13 2006-10-11 Intuitive Darstellung von Windgeschwindigkeit und -richtung Withdrawn EP1775555A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/249,698 US7471214B2 (en) 2005-10-13 2005-10-13 Intuitive wind velocity and direction presentation

Publications (1)

Publication Number Publication Date
EP1775555A1 true EP1775555A1 (de) 2007-04-18

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EP06122077A Withdrawn EP1775555A1 (de) 2005-10-13 2006-10-11 Intuitive Darstellung von Windgeschwindigkeit und -richtung

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